protected void Button1_Click(object sender, EventArgs e)
    {//获取服务器的环境变量
        Response.Write("<br />当前网页虚拟路径是:" + Request.ServerVariables["url"]);
        Response.Write("<br />当前网页虚拟路径是:" + Request.RawUrl);
        Response.Write("<br />实际路径:" + Request.ServerVariables["path_translated"]);
        Response.Write("<br />实际路径:" + Request.PhysicalPath);
        Response.Write("<br />服务器名:" + Request.ServerVariables["server_name"]);
        Response.Write("<br />服务器IP:" + Request.UserHostAddress);
    }

    protected void Button2_Click(object sender, EventArgs e)
    {//获取浏览器的环境变量
        Response.Write("<br />这个浏览器是否支持背景音乐:" + Request.Browser.BackgroundSounds);
        Response.Write("<br />这个浏览器是否支持框架:" + Request.Browser.Frames);
        Response.Write("<br />客户用的什么系统:"+Request.Browser.Platform);
    }